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RU2018354C1 - Plant for treatment of fluid with gas - Google Patents

Plant for treatment of fluid with gas Download PDF

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Publication number
RU2018354C1
RU2018354C1 SU4743554A RU2018354C1 RU 2018354 C1 RU2018354 C1 RU 2018354C1 SU 4743554 A SU4743554 A SU 4743554A RU 2018354 C1 RU2018354 C1 RU 2018354C1
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gas
liquid
injector
fluid
tank
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Russian (ru)
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Джилермо Гарридо
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Л'Эр Ликид, Сосьете Аноним Пур Л'Этюд Э Л'Эксплуатасьон Де Проседе Жорж Клод
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C1/00—Producing ice
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B2/00—Preservation of foods or foodstuffs, in general
    • A23B2/80—Freezing; Subsequent thawing; Cooling
    • A23B2/85—Freezing; Subsequent thawing; Cooling with addition of or treatment with chemicals
    • A23B2/88—Freezing; Subsequent thawing; Cooling with addition of or treatment with chemicals with direct contact between the food and the chemical, e.g. liquid N2 at cryogenic temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
    • B01J10/005—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor carried out at high temperatures in the presence of a molten material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/26—Nozzle-type reactors, i.e. the distribution of the initial reactants within the reactor is effected by their introduction or injection through nozzles
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/02—Preparation of sulfur; Purification
    • C01B17/0232—Purification, e.g. degassing
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/1278—Provisions for mixing or aeration of the mixed liquor
    • C02F3/1294—"Venturi" aeration means
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/20—Activated sludge processes using diffusers
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B21/00—Obtaining aluminium
    • C22B21/06—Obtaining aluminium refining
    • C22B21/064—Obtaining aluminium refining using inert or reactive gases
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/75—Flowing liquid aspirates gas

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Water Supply & Treatment (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Microbiology (AREA)
  • Thermal Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Inorganic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Paper (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

FIELD: treatment of fluid with gas. SUBSTANCE: plant has tank for fluid in which injector is immersed and communicated with circulation pipeline. To intensify efficiency of mass exchange the gas inlet of injector is located inside coaxially to fluid inlet. Outlet ends of both inlets are located at same level near tank bottom. Injector is installed in tank at angle of 40 deg to vertical. EFFECT: higher efficiency. 3 cl, 1 dwg

Description

Изобретение относится к обработке жидкости газообразным агентом, который вдувают с помощью газового инжектора, погруженного в ванну с указанной жидкостью. Этот способ переноса, который осуществляется в результате образования множества пузырьков газа в жидкости, позволяет максимально увеличить поверхность раздела газ-жидкость, обеспечить наибольшее возможное время нахождения газа в ванне и создать режим турбулентного истечения, благоприятный для теплового обмена и массообмена. The invention relates to the treatment of a liquid with a gaseous agent that is blown with a gas injector immersed in a bath with said liquid. This transfer method, which is carried out as a result of the formation of many gas bubbles in a liquid, allows to maximize the gas-liquid interface, to provide the longest possible time for gas to remain in the bath, and to create a turbulent flow regime favorable for heat exchange and mass transfer.

Однако бывает, что образованные таким образом пузырьки с трудом проникают в ванну и имеют тенденцию к возвращению для скопления у выходного отверстия инжектора, образуя крупные пузыри, которые в этом случае быстро поднимаются на поверхность ванны, не выполнив своих функций. Это нежелательное явление объясняют тем, что газовый поток, выходящий из инжектора, не обладает количеством движения, которое было бы достаточным для создания необходимой турбулентности. Именно так обстоит дело с обработкой неньютоновских жидкостей, таких как жидкие металлы или вязкие пасты. Кроме слабого использования обрабатываемого газа, отмечают, что при обработке при высокой температуре с использованием кислорода, реагирующего экзотермические с жидкостью, имеет место образование горячих точек на уровне выхода инжектора с опасностью разрушения кончика инжектора. However, it happens that the bubbles formed in this way hardly penetrate the bath and tend to return for accumulation at the injector outlet, forming large bubbles, which in this case quickly rise to the surface of the bath, not fulfilling their functions. This undesirable phenomenon is explained by the fact that the gas stream exiting the injector does not have the amount of movement that would be sufficient to create the necessary turbulence. This is the case with the processing of non-Newtonian fluids, such as liquid metals or viscous pastes. In addition to the poor use of the gas being treated, it is noted that when processing at high temperature using oxygen that reacts exothermically with the liquid, hot spots form at the injector exit level with the risk of destruction of the injector tip.

Наиболее близкой к изобретению по технической сущности является установка для обработки жидкости газом, содержащая бак для жидкости, инжектирующее устройство, погруженное в жидкость, трубопроводы для циркуляции жидкости, насос. Трубопровод для циркуляции жидкости входным участком размещен вблизи дна бака. Само инжектирующее устройство выполнено в виде трубы с рядом отверстий, снабженной козырьком, под который введена труба для подвода газа. Отверстия в трубе выполнены так, что исходящее из них струи жидкости направлены под углом к днищу ванны. Closest to the invention in technical essence is an apparatus for treating a liquid with gas, comprising a liquid tank, an injection device immersed in the liquid, pipelines for circulating the liquid, and a pump. The pipeline for the circulation of fluid inlet section is located near the bottom of the tank. The injection device itself is made in the form of a pipe with a series of holes equipped with a visor, under which a pipe for supplying gas is introduced. The holes in the pipe are made so that the outgoing liquid jets are directed at an angle to the bottom of the bath.

Указанное устройство характеризуется недостаточной эффективностью процесса массообмена из-за малой поверхности контактирования газа с жидкостью. The specified device is characterized by insufficient efficiency of the mass transfer process due to the small contact surface of the gas with the liquid.

Цель изобретения - повышение эффективности процесса. The purpose of the invention is to increase the efficiency of the process.

Для этого в установке, содержащей бак, циркуляционные трубопроводы, насос, инжектор, снабженный патрубком подвода газа, патрубок подвода газа в инжектор размещен в патрубке подвода жидкости, коаксиально последнему, а их выходные торцы размещены на одном уровне. При этом продольная ось инжектора образует с вертикалью угол 40о, а трубопровод для циркуляции жидкости размещен в баке под уровнем жидкости.To do this, in the installation containing the tank, circulating pipelines, a pump, an injector equipped with a gas supply pipe, a gas supply pipe to the injector is placed in the liquid supply pipe, coaxially to the last, and their outlet ends are placed at the same level. The longitudinal axis of the injector forms an angle with the vertical of 40, and a conduit for circulation of fluid arranged in the tank below the liquid level.

На чертеже изображена установка для контактирования газа с жидкостью. The drawing shows an installation for contacting gas with a liquid.

Установка включает полусферический бак 1, заполненный жидкостью 2. Патрубок 3 подвода газа глубоко погружается в ванну и окружен на небольшом расстоянии коаксиальным кожухом инжектора 4, который на расстоянии от выпускного отверстия 5 патрубка 3, но еще в жидкости 2 соединен через трубопровод 6 с выходом рециркуляционного приводного насоса 8 с приводным валом, выходящим в точке 9 и приводимым в движение двигателем 10. При этом насос отбирает жидкость через трубопровод 7, проходящий вблизи от дна бака 1. Патрубок 3 подвода газа содержит линейную концевую часть, которая наклонена по отношению к вертикали на угол примерно 40о.The installation includes a hemispherical tank 1 filled with liquid 2. The gas supply pipe 3 is deeply immersed in the bath and is surrounded at a short distance by the coaxial casing of the injector 4, which is connected to the recirculation outlet through a pipe 6 at a distance from the outlet 5 of the pipe 3, but still in the liquid 2 a drive pump 8 with a drive shaft emerging at point 9 and driven by a motor 10. In this case, the pump draws fluid through a pipe 7 passing close to the bottom of the tank 1. The gas supply pipe 3 contains a linear gloss portion, which is inclined relative to the vertical at an angle of approximately 40 °.

Рециркуляционный насос выполнен из стали, нержавеющей стали или металлического сплава, или же он выполнен из керамики или графита, или же рецеркуляционный насос и трубопроводы 6 и 7 выполнены из металла или металлического сплава с внутренней футеровкой из керамики или графита, или из так называемого композиционного материала во избежание химического или термического повреждения насоса и трубопроводов. The recirculation pump is made of steel, stainless steel or a metal alloy, or it is made of ceramic or graphite, or the recirculation pump and pipelines 6 and 7 are made of metal or a metal alloy with an inner lining of ceramic or graphite, or from the so-called composite material to avoid chemical or thermal damage to the pump and piping.

При работе, например, во время рафинирования свинца подают промышленный кислород, т.е. почти чистый кислород, в ванну жидкого свинца. Одновременно рециркуляционный насос 8 подает в кольцевой трубопровод 11, между патрубком 3 и кожухом инжектора 4, струю жидкого свинца из ванны, которая выходит вокруг потока кислорода, поступающего из патрубка 3. Воздействие потока свинца является защитным для конца патрубка благодаря явлению удаления пузырьков кислорода, которое он создает, и этот эффект еще усиливается благодаря наклону патрубка. Кроме того, циркуляция свинца благоприятствует перемешиванию ванны. During operation, for example, industrial oxygen is supplied during refining of lead, i.e. almost pure oxygen into a bath of liquid lead. At the same time, the recirculation pump 8 feeds into the annular pipe 11, between the nozzle 3 and the injector casing 4, a stream of liquid lead from the bath, which exits around the oxygen stream coming from the nozzle 3. The impact of the lead stream is protective for the end of the nozzle due to the phenomenon of removal of oxygen bubbles, which he creates, and this effect is further enhanced by the inclination of the nozzle. In addition, the circulation of lead favors the mixing of the bath.

Хотя в большинстве случаев применения выпускные отверстия газопроводов и защитной жидкости являются коаксиальными, из-за более низкой плотности газа относительно плотности жидкости иногда желательно расположить выпускное отверстие газа на одном уровне с нижней частью сечения трубопровода защитной жидкости для лучшего использования увеличения пузырьков и из-за максимально длительного времени нахождения газа в жидком потоке. По той же самой причине всегда предпочтительнее сохранять выходные оси в одной и той же вертикальной плоскости. Although, in most applications, the gas outlet and protective fluid outlet are coaxial, due to the lower gas density relative to the fluid density, it is sometimes desirable to position the gas outlet at the same level as the lower portion of the protective fluid pipe section to make better use of the increased bubbles and because of the maximum long time gas in the liquid stream. For the same reason, it is always preferable to keep the output axes in the same vertical plane.

Предлагаемая установка может быть использована в процессе рафинирования свинца, в пищевой промышленности для охлаждения жидкостей с пищевыми пульпами с помощью криогенных жидкостей, в процессе делигнификации целлюлозы, в процессе дегазации алюминия, в производстве в жидкой фазе серы из сернистого водорода, при обработке или регенерации различных жидкостей. The proposed installation can be used in the process of refining lead, in the food industry for cooling liquids with food pulps using cryogenic liquids, in the process of delignification of cellulose, in the process of degassing aluminum, in the production of sulfur from hydrogen sulfide in the liquid phase, during the processing or regeneration of various liquids .

Claims (3)

1. УСТАНОВКА ДЛЯ ОБРАБОТКИ ЖИДКОСТИ ГАЗОМ, содержащая бак, трубопровод для циркуляции жидкости, входной участок которого размещен вблизи дна бака, а выходной выполнен в виде инжектора, снабженного патрубком подвода газа, циркуляционный насос, отличающаяся тем, что патрубок подвода газа в инжекторе размещен в патрубке подвода жидкости коаксиально последнему, а их выходные торцы расположены на одном уровне. 1. INSTALLATION FOR PROCESSING LIQUID WITH GAS, containing a tank, a pipeline for circulating liquid, the inlet portion of which is located near the bottom of the tank, and the output is made in the form of an injector equipped with a gas supply pipe, a circulation pump, characterized in that the gas pipe in the injector is placed in the fluid supply pipe is coaxial to the latter, and their outlet ends are located at the same level. 2. Установка по п.1, отличающаяся тем, что продольная ось инжектора образует с вертикалью угол 40o.2. Installation according to claim 1, characterized in that the longitudinal axis of the injector forms an angle of 40 o with the vertical. 3. Установка по пп.1 и 2, отличающаяся тем, что трубопровод для циркуляции жидкости размещен в баке под уровнем жидкости. 3. Installation according to claims 1 and 2, characterized in that the pipeline for circulating the liquid is placed in the tank under the liquid level.
SU4743554 1989-04-11 1990-04-10 Plant for treatment of fluid with gas RU2018354C1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8904746 1989-04-11
FR8904746A FR2645456B1 (en) 1989-04-11 1989-04-11 METHOD AND PLANT FOR TREATING A LIQUID WITH A GAS

Publications (1)

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RU2018354C1 true RU2018354C1 (en) 1994-08-30

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US (1) US5087292A (en)
EP (1) EP0392900B2 (en)
JP (1) JPH02293033A (en)
CA (1) CA2014180C (en)
DD (1) DD301971A9 (en)
DE (1) DE69001854T3 (en)
ES (1) ES2041155T5 (en)
FR (1) FR2645456B1 (en)
HU (1) HU902142D0 (en)
PL (1) PL284737A1 (en)
RU (1) RU2018354C1 (en)

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FR2645456A1 (en) 1990-10-12
DE69001854T2 (en) 1993-09-23
DE69001854T3 (en) 1998-12-03
DD301971A9 (en) 1994-09-15
CA2014180A1 (en) 1990-10-11
PL284737A1 (en) 1991-08-12
EP0392900B1 (en) 1993-06-09
JPH02293033A (en) 1990-12-04
CA2014180C (en) 2000-09-19
EP0392900A1 (en) 1990-10-17
EP0392900B2 (en) 1998-01-14
US5087292A (en) 1992-02-11
FR2645456B1 (en) 1994-02-11
ES2041155T3 (en) 1993-11-01
HU902142D0 (en) 1990-07-28
ES2041155T5 (en) 1998-03-01
DE69001854D1 (en) 1993-07-15

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